IGGCAS OpenIR  > 新生代地质与环境院重点实验室
Diagenesis of the San Andres Formation in the Seminole unit in Central Basin platform, western Texas
Jiang, Lei1,2,3,4,5,6
2022-02-01
Source PublicationAAPG BULLETIN
ISSN0149-1423
Volume106Issue:2Pages:267-287
AbstractThe San Andres Formation, characterized by massive sulfate cementation (with X10%-30% of rock volume), is one of the most productive units in the Permian Basin. However, little attention has been paid to anhydrites, which affected the San Andres reservoir quality. Coupling petrography with geochemical analysis, this study aims at providing a holistic diagenetic evaporation of seawater has resulted in abundant bedded and nodular anhydrite precipitation along with reflux dolomitization. An early stage of bacterial sulfate reduction may have occurred and resulted in pyrite replaced anhydrite nodules. A small downward decreasing of d13C in carbonates may be caused by either the secular carbon isotopic change of seawater or the consequence of bacterial sulfate reduction. Fluid inclusion data obtained from anhydrite cements suggest that (1) anhydrite cementation continued to the maximum burial temperature of X75 degrees C and (2) a regional hydrothermal fluid activity with temperatures between 100 degrees C and 128 degrees C has occurred. Neogene meteoric water from the western uplifted mountain region may have promoted a late-stage bacterial sulfate reduction that caused anhydrite and dolomite dissolution and increased present-day reservoir quality in the residual oil zones. This study emphasizes the dynamics of anhydrite subjected to diagenesis that could result in an improved reservoir quality with greater heterogeneity in a mixed carbonate and evaporite system.
DOI10.1306/08092118042
WOS KeywordTHERMOCHEMICAL SULFATE REDUCTION ; TRIASSIC FEIXIANGUAN FORMATION ; CARBONATE-RAMP RESERVOIRS ; PERMIAN BASIN ; OUTCROP ANALOG ; SICHUAN BASIN ; TARIM BASIN ; FLUID-FLOW ; NEW-MEXICO ; POROSITY
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000747074900002
PublisherAMER ASSOC PETROLEUM GEOLOGIST
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/104011
Collection新生代地质与环境院重点实验室
岩石圈演化国家重点实验室
Corresponding AuthorJiang, Lei
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
5.Yangtze Univ, Coll Resources & Environm, Key Lab Explorat Technol Oil & Gas Resources Res, Minist Educ, Wuhan, Peoples R China
6.Chengdu Univ Technol, Inst Sedimentary Geol, Chengdu, Peoples R China
First Author AffilicationKey Laboratory of Cenozoic Geology and Environment, Chinese Academy of Sciences;  Institute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Cenozoic Geology and Environment, Chinese Academy of Sciences;  Institute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Jiang, Lei. Diagenesis of the San Andres Formation in the Seminole unit in Central Basin platform, western Texas[J]. AAPG BULLETIN,2022,106(2):267-287.
APA Jiang, Lei.(2022).Diagenesis of the San Andres Formation in the Seminole unit in Central Basin platform, western Texas.AAPG BULLETIN,106(2),267-287.
MLA Jiang, Lei."Diagenesis of the San Andres Formation in the Seminole unit in Central Basin platform, western Texas".AAPG BULLETIN 106.2(2022):267-287.
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